/*
*********************************************************************************************************
*                                             uC/GUI V3.98
*                        Universal graphic software for embedded applications
*
*                       (c) Copyright 2002, Micrium Inc., Weston, FL
*                       (c) Copyright 2002, SEGGER Microcontroller Systeme GmbH
*
*              �C/GUI is protected by international copyright laws. Knowledge of the
*              source code may not be used to write a similar product. This file may
*              only be used in accordance with a license and should not be redistributed
*              in any way. We appreciate your understanding and fairness.
*
----------------------------------------------------------------------
File        : GUI_AddDecShift.c
Purpose     : Routines to display values as dec
----------------------------------------------------------------------
*/

#include "GUI_Protected.h"
#include "GUIDebug.h"
#include "string.h"

/*********************************************************************
*
*       Public data
*
**********************************************************************
*/

const U32 GUI_Pow10[10] = {
  1 , 10, 100, 1000, 10000,
  100000, 1000000, 10000000, 100000000, 1000000000
};

/*********************************************************************
*
*       Static routines
*
**********************************************************************
*/
/*********************************************************************
*
*       _Check_NegLong
*/
static I32 _Check_NegLong(I32 *pv, char**ps) {
  if (*pv < 0) {
    *(*ps)++ = '-';
    *pv = -*pv;
    return 1;
  }
  return 0;
}

/*********************************************************************
*
*       Module internal routines
*
**********************************************************************
*/
/*********************************************************************
*
*       GUI_Long2Len
*/
I32 GUI_Long2Len(I32 vSign) {
  I32 Len = 1;
  I32 v = (vSign > 0) ? vSign : -vSign;
  while (( ((U32)v) >= GUI_Pow10[Len]) && (Len < 9)) {
    Len++;
  }
  if (vSign < 0) {
		Len++;
  }
  return Len;
}

/*********************************************************************
*
*       GUI_AddSign
*/
long GUI_AddSign(long v, char**ps)
{
	char c;
	if (v < 0) {
		c = '-';
		v = -v;
	} else {
		c = '+';
	}
	*(*ps)++ = c;
	**ps     = '\0';
	return v;
}

/*********************************************************************
*
*       Public routines
*
**********************************************************************
*/
/*********************************************************************
*
*       GUI_AddDecShift
*/
void GUI_AddDecShift(I32 v, U8 Len, U8 Shift, char**ps)
{
	char c;
	long d;
#ifndef _CM16C
	Len -= _Check_NegLong(&v, ps); /* TASKING: Tool internal error S003: asertion failed - please report */
#else
	if (v < 0) {
		*(*ps)++ = '-';
		v = -v;
	}
#endif
	if (Shift) {
		Len--;
	}
#if GUI_DEBUG_LEVEL >1
	if (Len > 9) {
		Len = 9;
		GUI_DEBUG_ERROROUT("Can not display more than 9 dec. digits");
	}
#endif
	if ((U32)v >= GUI_Pow10[Len])
		v = GUI_Pow10[Len] - 1;
	while (Len) {
		if (Len-- == Shift)
			*(*ps)++ = GUI_DecChar;
		d = GUI_Pow10[Len];
		c = (char) (v / d);
		v -= c * d;
		*(*ps)++ = c + '0';
	}
	**ps = 0;
}

/*************************** End of file ****************************/
	 	 			 		    	 				 	  			   	 	 	 	 	 	  	  	      	   		 	 	 		  		  	 		 	  	  			     			       	   	 			  		    	 	     	 				  	 					 	 			   	  	  			 				 		 	 	 			     			 
